Dix vs Watson
From a statistical perspective, I don't think Watson will challenge Dix. You're comparing Watson's 7 extra PPG with Dix's 8 extra RPG and 2 extra APG. Oh, and an extra 1.4 BPG plus fewer turnovers and fouls. Jye beats him in FT% and 3P% but I don't think that's enough. Whatever Dix loses to Newley or others, Jye may lose to Reggie or Wilkey.
If you add Oscar into the mix, he matches Dix on the scoreboard and in rebounds, but doesn't really challenge at all with assists. Oscar has an edge in blocks, fewer turnovers, and leads him in 3P% and FT%, but Dix has the superior FG%. You'd have to say that Dix would be favourite -- 5 APG from your PF is pretty tough for anyone to match.
Obviously it'll come down to how the referees have voted each game, rated scoring vs rebounds and assists, and weighted votes to winning teams. I think that last year a few players, who traditionally fly under the radar but do well for their team, polled well.
In the NBL, I went through every boxscore and gave my personal 3-2-1 votes -- in my judgement, Rychart cleanly outrated Farley, but the official standings were the opposite. Do the refs look at the boxscore before allocating votes? Do they go by what they've seen in the game alone (noticing the big shots and missing the sneaky inside twos)?